Method for processing information and terminal device

ABSTRACT

The present application relates to the field of communication technologies, and relates to a method for processing information and a terminal device, the method for processing information includes: determining a corresponding feedback resource based on received indication information; receiving sidelink data transmitted by a second UE; and, transmitting feedback information of the sidelink data on the sidelink data. In the present application, the problem of implementing feedback of HARQ-ACK information and channel state information in the sidelink communication is addressed, and the mode of transmitting the sidelink data is further optimized, thereby improving spectral efficiency on the sidelink channel.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a 371 of International Application No.PCT/KR2019/007634 filed on Jun. 25, 2019, which claims priority toChinese Patent Application No. 201810695916.1 filed on Jun. 29, 2018,the disclosures of which are herein incorporated by reference in theirentirety.

BACKGROUND 1. Field

The present application relates to the field of mobile communicationtechnologies, and in particular to a method for processing informationand a terminal device.

2. Description of Related Art

To meet the demand for wireless data traffic having increased sincedeployment of 4th generation (4G) communication systems, efforts havebeen made to develop an improved 5th generation (5G) or pre-5Gcommunication system. The 5G or pre-5G communication system is alsocalled a ‘beyond 4G network’ or a ‘post long term evolution (LTE)system’. The 5G communication system is considered to be implemented inhigher frequency (mmWave) bands, e.g., 60 GHz bands, so as to accomplishhigher data rates. To decrease propagation loss of the radio waves andincrease the transmission distance, beamforming, massive multiple-inputmultiple-output (MIMO), full dimensional MIMO (FD-MIMO), array antenna,analog beamforming, and large scale antenna techniques are discussedwith respect to 5G communication systems. In addition, in 5Gcommunication systems, development for system network improvement isunder way based on advanced small cells, cloud radio access networks(RANs), ultra-dense networks, device-to-device (D2D) communication,wireless backhaul, moving network, cooperative communication,coordinated multi-points (CoMP), reception-end interference cancellationand the like. In the 5G system, hybrid frequency shift keying (FSK) andFeher's quadrature amplitude modulation (FQAM) and sliding windowsuperposition coding (SWSC) as an advanced coding modulation (ACM), andfilter bank multi carrier (FBMC), non-orthogonal multiple access (NOMA),and sparse code multiple access (SCMA) as an advanced access technologyhave been developed.

The Internet, which is a human centered connectivity network wherehumans generate and consume information, is now evolving to the Internetof things (IoT) where distributed entities, such as things, exchange andprocess information without human intervention. The Internet ofeverything (IoE), which is a combination of the IoT technology and thebig data processing technology through connection with a cloud server,has emerged. As technology elements, such as “sensing technology”,“wired/wireless communication and network infrastructure”, “serviceinterface technology”, and “security technology” have been demanded forIoT implementation, a sensor network, a machine-to-machine (M2M)communication, machine type communication (MTC), and so forth have beenrecently researched. Such an IoT environment may provide intelligentInternet technology services that create a new value to human life bycollecting and analyzing data generated among connected things. IoT maybe applied to a variety of fields including smart home, smart building,smart city, smart car or connected cars, smart grid, health care, smartappliances and advanced medical services through convergence andcombination between existing information technology (IT) and variousindustrial applications.

In line with this, various attempts have been made to apply 5Gcommunication systems to IoT networks. For example, technologies such asa sensor network, MTC, and M2M communication may be implemented bybeamforming, MIMO, and array antennas. Application of a cloud RAN as theabove-described big data processing technology may also be considered tobe as an example of convergence between the 5G technology and the IoTtechnology.

As described above, various services can be provided according to thedevelopment of a wireless communication system, and thus a method foreasily providing such services is required.

In the 3GPP standards, the direct communication link between devices anddevices is referred as sidelink, and similar to the uplink and downlink,there are also control channels and shared channels on the sidelink, ofwhich the former is referred as a physical sidelink control channel(PSCCH), the latter as a physical sidelink shared channel (PSSCH). ThePSCCH is utilized to indicate the time-frequency domain resourceposition transmitted by the PSSCH, the modulation and coding modes, thereception target ID for which the PSSCH is directed, and otherinformation, and the PSSCH is used to carry data.

At present, two types of sidelink communication mechanisms are definedin the 3GPP standards, namely, Device to Device (D2D) and V2X (Vehicleto Vehicle/Pedestrian/Infrastructure/Network, hereinafter referred to asV2X), of which the latter is superior to the former in terms of datarate, delay and reliability, so it has become the most representativesidelink communication technology in the current 3GPP standards. Withregard to the resource assignment mechanism, the existing V2X technologyincludes two modes, namely, a resource assignment mode based on basestation scheduling (Mode 3) and a resource assignment mode selected byUE (Mode 4). For Mode 3, the UE determines the transmission resource onthe sidelink channel assigned by the base station through receiving thedownlink control channel of the base station, and the mutualinterference between the transmission resources of different UEs may beminimized by a reasonable base station scheduling policy. For Mode 4,the base station does not participate in specific resource assignment,and the UE determines the best transmission resource by detecting thechannel. Since the existing V2X technology is mainly used to supportbroadcast services at the beginning of the design, Mode 3 and Mode 4currently use the broadcast transmission mode at the physical layer,that is, the physical channel transmitted by any one UE may be receivedand demodulated by other UEs within a certain range. Therefore, in thesidelink communication, the receiving end is not required to feed backthe information about the hybrid automatic repeat request acknowledge(HARQ-ACK) and the channel state information to the transmitting end.This implementation is beneficial to reduce complexity of the entiresystem, but the spectral efficiency on the sidelink channel is thereforeseriously affected.

Due to the increasing demand for V2X technology in the market, the 3GPPwill continue to evolve V2X technology to support more types of servicesexpected by the market. Since the above new service types often requirehigh data transmission rates, and some new service types may beeffectively supported by physical layer unicast, in this case, there iscurrently no ideal technical solution to implement feedback of the aboveinformation in the sidelink communication.

SUMMARY

A method of for processing information is provided. The method comprisesdetermining a corresponding feedback resource based on receivedindication information; receiving sidelink data transmitted by a secondUE; and, transmitting feedback information of the sidelink data on thesidelink data. In the present application, the problem of implementingfeedback of HARQ-ACK information and channel state information in thesidelink communication is addressed, and the mode of transmitting thesidelink data is further optimized, thereby improving spectralefficiency on the sidelink channel.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and/or additional aspects and advantages of the presentapplication will become apparent and readily understood by describing indetail embodiments thereof with reference to the accompanying drawings,in which:

FIG. 1 is a flowchart of a method for processing information in a firstUE side according to an embodiment of the present application;

FIG. 2 is a brief schematic diagram of processing information in thefirst UE side according to an embodiment of the present application;

FIG. 3 is a brief schematic diagram of processing information in asecond UE side according to an embodiment of the present application;

FIG. 4 is a schematic diagram of a first processing flow of the methodfor processing information in the first UE side according to anembodiment of the present application;

FIG. 5 is a schematic diagram of a method for processing informationaccording to Embodiment I of the present application;

FIG. 6 is a schematic diagram of a method for jointly counting DAIs of asidelink channel and a downlink channel transmission according toEmbodiment I of the present application;

FIG. 7 is a schematic diagram of a second processing flow of a methodfor processing information in the first UE side according to EmbodimentI of the present application;

FIG. 8 is a schematic diagram of a method for processing informationaccording to Embodiment II of the present application;

FIG. 9 is a schematic diagram of a method for processing informationaccording to Embodiment III of the present application;

FIG. 10 is a schematic diagram of a method for processing informationaccording to Embodiment IV of the present application;

FIG. 11 is a schematic structural diagram of a terminal device in thefirst UE side according to an embodiment of the present application;

FIG. 12 is a flowchart of a method for processing information in thesecond UE side according to an embodiment of the present application;and,

FIG. 13 is a schematic structural diagram of a terminal device in thesecond UE side according to an embodiment of the present application.

FIG. 14 schematically illustrates a terminal device in the first UE sideaccording to an embodiment of the present disclosure.

FIG. 15 schematically illustrates a terminal device in the second UEside according to an embodiment of the present disclosure.

FIG. 16 schematically illustrates a base station according to anembodiment of the present disclosure.

DETAILED DESCRIPTION

The purpose of the present application is to address at least one of theabove technical drawbacks, in particular to address the problem ofimplementing feedback of HARQ-ACK information and channel stateinformation in the sidelink communication.

In the present application, the first aspect provides a method forprocessing information, including the following steps:

determining a corresponding feedback resource based on receivedindication information;

receiving sidelink data transmitted by a second UE; and,

transmitting feedback information of the sidelink data on the feedbackresource.

According to an embodiment of the present disclosure, the step ofdetermining a corresponding feedback resource based on receivedindication information, comprises: receiving the indication informationtransmitted by a base station; and, acquiring an uplink channel feedbackresource carried in the indication information.

According to an embodiment of the present disclosure, the indicationinformation further carries a time-frequency resource position and atransmission mode of the sidelink data transmitted by the second UE, andthe step of receiving sidelink data transmitted by the second UEcomprises: receiving the sidelink data transmitted by the second UEbased on the time-frequency resource position and the transmission modein the indication information.

According to an embodiment of the present disclosure, the indicationinformation is carried by a downlink control channel, and the downlinkcontrol channel is scrambled by a specific radio network temporaryidentity RNTI.

According to an embodiment of the present disclosure, the specific radionetwork temporary identify RNTI comprises one of the following: an RNTIof the second UE, an RNTI of a first UE transmitting the feedbackinformation of the sidelink data, and a function of the RNTI of thesecond UE and the RNTI of the first UE.

According to an embodiment of the present disclosure, the method furthercomprises: counting downlink assignment indexes DAIs of the sidelinkdata and the downlink channel jointly and successively, if an uplinkchannel feedback resource of information about a hybrid automatic repeatrequest acknowledge HARQ-ACK for feeding back the sidelink data isconsistent with an uplink channel feedback resource of the HARQ-ACKinformation for feeding back the downlink channel.

According to an embodiment of the present disclosure, if the feedbackresource is the uplink channel feedback resource, the indicationinformation further carries time-position information of the uplinkchannel feedback resource.

According to an embodiment of the present disclosure, the step ofdetermining a corresponding feedback resource based on the receivedindication information, comprises: receiving a physical sidelink controlchannel PSCCH transmitted by the second UE and/or a physical sidelinkshared channel PSSCH; and, determining a corresponding uplink channelfeedback resource and/or a corresponding sidelink channel feedbackresource according to the PSCCH and/or the PSSCH.

According to an embodiment of the present disclosure, the step ofdetermining the corresponding uplink channel feedback resource and/orthe corresponding sidelink channel feedback resource according to thePSCCH and/or the PSSCH, comprises: determining the uplink channelfeedback resource and/or the sidelink channel feedback resourceaccording to the indication information in the PSCCH; and, determiningthe sidelink channel feedback resource according to the correspondencebetween the resource where the PSCCH/PSSCH is located and the feedbackresource.

According to an embodiment of the present disclosure, the PSCCH furthercarries a time-frequency resource position and a transmission mode ofthe sidelink data transmitted by the second UE, and the step ofreceiving the sidelink data transmitted by the second UE comprises:receiving the sidelink data transmitted by the second UE based on thetime-frequency resource position and the transmission mode carried inthe PSCCH.

According to an embodiment of the present disclosure, the PSCCH furthercarries a time-position information of the uplink channel feedbackresource, if the feedback resource is the uplink channel feedbackresource; and/or, the PSCCH further carries a time-position informationof the sidelink channel feedback resource, if the feedback resource isthe sidelink channel feedback resource.

According to an embodiment of the present disclosure, the step oftransmitting feedback information of the sidelink data on the feedbackresource, comprises at least one of the following: transmitting a hybridautomatic repeat request acknowledge HARQ-ACK and channel stateinformation CSI of the sidelink data on the sidelink channel feedbackresource, if the feedback resource is the sidelink channel feedbackresource; and, transmitting the HARQ-ACK of the sidelink data on theuplink channel feedback resource and transmitting the CSI on thesidelink channel feedback resource, if the feedback resource includesthe uplink channel feedback resource and the sidelink channel feedbackresource.

According to an embodiment of the present disclosure, if the feedbackresource is the uplink channel feedback resource, the step oftransmitting the feedback resource of the sidelink data on the feedbackresource, comprises: transmitting the hybrid automatic repeat requestacknowledge HARQ-ACK and channel state information CSI of the sidelinkdata on the uplink channel feedback resource.

The second aspect provides a terminal device, including:

a determining unit, configured to determine a corresponding feedbackresource based on received indication information;

a receiving unit, configured to receiving sidelink data transmitted by asecond UE; and,

a transmitting unit, configured to transmit feedback information of thesidelink data on the feedback resource.

The third aspect provides a terminal device, including a memory and afirst processor, the memory is configured to store a computer program,and when the computer program is executed by the first processor, thesteps of the foregoing method for processing information areimplemented.

The fourth aspect provides a method for processing information,including the following steps:

receiving status indication information transmitted by a first UE;

determining a connection relationship between the first UE and a basestation based on the status indication information; and,

determining whether to receive feedback information transmitted by thefirst UE on a feedback resource, based on the connection relationshipbetween the first UE and the base station.

According to an embodiment of the present disclosure, the step ofdetermining whether to receive feedback information transmitted by thefirst UE on the feedback resource, according to the connectionrelationship between the first UE and the base station, comprises:receiving feedback information transmitted by the first UE on thefeedback resource, if there is no RRC connection between the first UEand the base station; specifically, receiving indication informationtransmitted by the base station and transmitting the indicationinformation to the first UE, such that the first UE determines atime-frequency resource position, a transmission mode, and a feedbackresource of the corresponding sidelink data based on the receivedindication information; and, receiving feedback information transmittedby the first UE on the feedback resource.

According to an embodiment of the present disclosure, the step ofdetermining whether to receive feedback information transmitted by thefirst UE on the feedback resource, according to the connectionrelationship between the first UE and the base station, comprises:receiving the indication information transmitted by the base station,and transmitting the sidelink data according to the indicationinformation, if there is RRC connection between the first UE and thebase station.

The fifth aspect provides a terminal device, including:

a receiving unit, configured to receive status indication informationtransmitted by a first UE;

a first processing unit, configured to determine a connectionrelationship between the first UE and a base station based on the statusindication information; and,

a second processing unit, configured to determine whether to receivefeedback information transmitted by the first UE on a feedback resource,according to the connection relationship between the first UE and thebase station.

The sixth aspect provides a terminal device, including a memory and afirst processor, the memory is configured to store a computer program,and when the computer program is executed by the first processor, thesteps of the foregoing method for processing information areimplemented.

In the present application, the corresponding feedback resource isdetermined based on the received indication information; and thesidelink data transmitted by the second UE is received; and the feedbackinformation of the sidelink data is transmitted on the feedbackresource, thereby, the problem of implementing feedback of HARQ-ACKinformation and channel state information in the sidelink communicationis addressed, and the mode of transmitting the sidelink data is furtheroptimized, therefore improving spectral efficiency on the sidelinkchannel.

Additional aspects and advantages of the present application will partlybe presented in the following description, partly become apparent in thefollowing description or be appreciated in practicing of the presentapplication.

The embodiments of the present application will be described in detailhereafter, and examples of the embodiments are illustrated in theaccompanying drawings, throughout which same or similar referencenumerals refer to same or similar elements or elements having same orsimilar functions. The embodiments described hereafter with reference tothe drawings are illustrative, merely used for explaining the presentapplication and should not be regarded as any limitations thereto.

It should be understood by those skill in the art that singular forms“a”, “an”, “the”, and “said” may be intended to include plural forms aswell, unless otherwise stated. It should be further understood thatterms “include/comprise” used in this specification specify the presenceof the stated features, integers, steps, operations, elements and/orcomponents, but not exclusive of the presence or addition of one or moreother features, integers, steps, operations, elements, components,and/or combinations thereof. It should be understood that when acomponent is referred to as being “connected to” or “coupled to” anothercomponent, it may be directly connected or coupled to other elements orprovided with intervening elements therebetween. In addition, “connectedto” or “coupled to” as used herein may include wireless connection orcoupling. As used herein, term “and/or” includes all or any of one ormore associated listed items or combinations thereof.

Those skilled in the art will appreciate that all terms (includingtechnical terms and scientific terms) used herein have the same meaningas commonly understood by one of ordinary skill in the art to belongingto the field of the present application, unless otherwise defined. Itshould also be understood that those terms, such as those defined in ageneral dictionary, should be considered to have a meaning consistentwith the meaning in the context of the prior art, and, unless clearlydefined herein, should not be understood differently or as having anexcessively formal meaning.

Those skilled in the art may understand that the “terminal” and“terminal device” as used herein include both a wireless signal receiverdevice only having a wireless signal receiver without a transmittingcapability, and a receiving and transmitting hardware having a devicecapable of receiving and transmitting hardware for two-way communicationover a two-way communication link. Such device may include: a cellularor other communication device having a single line display or amulti-line display, or a cellular or other communication device withouta multi-line display; a PCS (Personal Communications Service), which maycombine voice, data processing, fax and/or data communicationcapabilities; a PDA (Personal Digital Assistant), which may include aradio frequency receiver, a pager, Internet/Intranet access, a webbrowser, a notepad, a calendar, and/or a GPS (Global Positioning System)receiver; a conventional laptop and/or a palmtop computer or otherdevices having a conventional laptop and/or palmtop computer or otherdevices and/or having a radio frequency receiver. As used herein,“terminal” and “terminal device” may be portable, transportable,installed in a vehicle (in aviation, sea and/or land), or adapted and/orconfigured to operate locally, and/or operated in any other location onthe earth and/or space in a distributed form. As used herein, “terminal”and “terminal device” may also be a communication terminal, an internetterminal, and a music/video playing terminal, for example, a PDA, a MID(Mobile Internet Device), and/or a mobile phone having a music/videoplayback function, and may also be a smart TV, a set-top box and otherdevices.

Hereafter, a UE receiving control and shared channels from other UEs andperforming information feedback, is defined as a first UE, and a UEtransmitting control and shared channels is defined as a second UE,unless otherwise specified.

The present application provides a method for processing information, asshown in FIG. 1, including the following steps:

Step 101: determining a corresponding feedback resource based onreceived indication information;

Step 102: receiving sidelink data transmitted by a second UE; Step 103:transmitting feedback information of the sidelink data on the feedbackresource.

Based on the above method, the problem of implementing feedback ofHARQ-ACK information and channel state information in the sidelinkcommunication is addressed, and the mode of transmitting sidelink datais further optimized, thereby improving spectral efficiency on thesidelink channel.

In order to improve spectral efficiency of the V2X communication systemand thus support the high data rate service type more effectively, it isnecessary to introduce certain information feedback in the sidelinkcommunication, and in this regard, the present application proposes amethod for processing information in the sidelink communication, asshown in FIG. 2, including the following steps for the first UE:

Step 201: determining, by the first UE, a resource for informationfeedback (hereinafter referred to as a feedback resource).

In the present application, the first UE may determine the feedbackresource according to the received base station scheduling signaling,and may also determine the feedback resource according to the receivedPSCCH or PSSCH transmitted by the second UE. In the present application,the feedback resource may be a physical uplink control channel (PUCCH)resource on the uplink channel or a physical uplink shared channel(PUSCH) resource on the uplink channel, or a PSCCH or a PSSCH resourceon the sidelink channel, or a newly defined sidelink channel resource.

Step 202: receiving, by the first UE, the sidelink data transmitted bythe second UE.

The first UE may determine, according to the received schedulingsignaling from the base station, a time-frequency position and a modefor transmitting the sidelink data by the second UE; or, the first UEmay determine a time-frequency position and a mode for transmitting thesidelink data by receiving the PSCCH transmitted by the second UE.

Step 203: feeding back, by the first UE, corresponding information in acorresponding manner on the determined resource.

If the feedback resource is a resource on the uplink channel, the firstUE feeds back the corresponding information by using the PUCCH or thePUSCH; if the feedback resource is a resource on the sidelink channel,the first UE feeds back the corresponding information by using thePUCCH, the PUSCH, or the newly defined sidelink channel. The informationmay be the HARQ-ACK information, and the first UE determines theHARQ-ACK information of the feedback according to the received data fromthe second UE. The information may also be channel state information ora second UE buffer status report (BSR).

As shown in FIG. 3, for the second UE, the following steps are included:

Step 301: searching, by the second UE, for a specific radio networktemporary identity (RNTI) in a search space of a specific downlinkcontrol channel to scramble the downlink control channel.

In the present application, the downlink control channel should includeat least one of the following information: information for indicating aPSSCH transmission resource of the second UE, and information forindicating a PSSCH transmission mode of the second UE, information forindicating one or more feedback resources of the first UE, and the like.

Step 302: transmitting, by the second UE, the PSSCH and/or the PSCCHaccording to the detected downlink control channel.

Wherein, the corresponding information is indicated in the PSCCH whentransmitting the PSCCH; the corresponding information indicated in thePSCCH should be consistent with the information contained in thedownlink control channel detected by the second UE.

Based on the above method for processing information, the method will beexplained in detail below, as shown in FIG. 4, that is a schematicdiagram of the first specific processing flow of the method forprocessing information provided by the embodiment of the presentapplication, including the following steps:

Step 401: receiving, by the first UE, an uplink channel feedbackresource transmitted by the base station.

In this step, the above processing is specifically:

receiving indication information transmitted by the base station;

acquiring the uplink channel feedback resource carried in the indicationinformation.

Step 402: receiving, by the first UE, the sidelink data transmitted bythe second UE.

In this step, the above processing is:

the indication information further carries a time-frequency resourceposition and a transmission mode of the sidelink data transmitted by thesecond UE, and the step of receiving the sidelink data transmitted bythe second UE, includes:

receiving the sidelink data transmitted by the second UE, based on thetime-frequency resource position and the transmission mode in theindication information.

Wherein, the indication information is carried by the downlink controlchannel, and the downlink control channel is scrambled by a specificradio network temporary identity RNTI.

Further, the specific radio network temporary identify RNTI includes oneof the following: an RNTI of the second UE, an RNTI of the first UEtransmitting the feedback information of the sidelink data, and afunction of the RNTI of the second UE and the RNTI of the first UE.

Step 403: transmitting, by the first UE, the feedback information of thesidelink data on the feedback resource.

In the technical solution, the method further includes:

counting downlink assignment indexes DAIs of the sidelink data and thedownlink channel jointly and successively, if the uplink channelfeedback resource of the HARQ-ACK information for feeding back thesidelink data is consistent with the uplink channel feedback resource ofthe HARQ-ACK information for feeding back the downlink channel.

Further, if the feedback resource is the uplink channel feedbackresource, the indication information further carries time-positioninformation of the uplink channel feedback resource.

Based on the technical solution provided by the foregoing embodiment ofthe present application, the technical solution will be described indetail below with reference to one specific embodiment.

Embodiment I

A schematic diagram of this embodiment is shown in FIG. 5. In theembodiment, the second UE detects the downlink control channel C10transmitted by the base station in a specific downlink control channelsearch space S10, determines the time-frequency resource fortransmitting the PSSCH, and the transmission mode of the PSSCH, whichthe transmission mode of the PSSCH includes the modulation and codingmode of the PSSCH, transmission power control, etc. The C10 is scrambledby a specific RNTI10, which may be configured by the base station, andin this case, preferably, the value of RNTI10 should be different fromthe value of other RNTIs of the second UE. The value of RNTI10 may alsobe a function of the specific RNTI and RNT11 of the first UE and thespecific RNTI and RNTI12 of the second UE, for example, the RNTI10 maybe obtained by performing the “AND” operation, the “OR” operation, orthe “XOR” operation on the RNTI11 and the RNTI12 in bits, and in thiscase, the second UE determines the value of the RNTI11 by receivingsignaling of the base station or information transmitted by the firstUE.

In addition, the first UE detects C10 in S10 and acquires theconfiguration of the feedback resource therefrom, and preferably, thefirst UE may further acquire, by using C10, a time-frequency positionand a mode for transmitting the sidelink data by the second UE. Thefirst UE may determine the configuration of S10 and the value of RNTI10by receiving signaling of the base station or by receiving informationtransmitted by the second UE. Consequently, in this embodiment, thedownlink control channel C10 should include at least the informationindicating the PSSCH transmission resource of the second UE, theinformation indicating the PSSCH transmission mode of the second UE, andthe information indicating the feedback resource of the first UE.

The above feedback resource may be an uplink control channel PUCCHresource, and in this case, the first UE may determine the PUCCHresource according to the PUCCH resource index in C10 and/or the indexof the control channel element (CCE) of C10, which the PUCCH resource isonly a PUCCH resource included in one PUCCH resource set. The feedbackresource may also be a resource on the uplink shared channel PUSCH, andin this case, the PUSCH resource refers to a specific physical resourceblock (PRB) in a certain time slot. Regardless of whether the feedbackresource is a PUCCH resource or a PUSCH resource, the time-positionwhere the feedback resource is located should be indicated in C10, andthe time-position where the feedback resource is located may berepresented as an interval from the time-position of C10 or an intervalfrom the time-position of the received PSSCH.

The first UE should further receive the PSSCH transmitted by the secondUE according to the indication of C10, and the first UE should feed backthe HARQ-ACK information on the feedback resource according to thedetection result of the PSSCH, that is, if the PSSCH is successfullydemodulated, the first UE should feed back a positive acknowledge ACK,otherwise, the first UE should feed back a negative acknowledge NACK.

Preferably, the first UE may simultaneously feed back the HARQ-ACKinformation of the PSSCH and the HARQ-ACK information of the downlinkchannel received by the first UE in the same PUCCH, wherein the downlinkchannel includes the PDSCH2O that needs to feed back the HARQ-ACKinformation and the PDCCH2O that indicates release of semi-persistentscheduling (SPS). In this case, C10 should include a downlink assignmentindex (DAI). When the HARQ-ACK feedback information of the PSSCH and theHARQ-ACK feedback information of the PDSCH2O or PDCCH2O are fed back inthe same feedback resource, the DAI included in C10 should be uniformlycounted with the DAI included in PDCCH of the scheduled PDSCH2O as wellas the DAI in PDCCH2O as shown in FIG. 6.

Preferably, in this embodiment, the second UE may further carry thebuffer status report (BSR) of the sidelink data of the UE by using thetransmitted PSSCH, and after successfully demodulating the PSSCHtransmitted by the second UE, the first UE may feed back the BSRtransmitted by the second UE to the base station. It should be notedthat the feedback resource used by the first UE to feed back the BSR maybe consistent with the feedback resource used to feed back the HARQ-ACKinformation, or may be different with thereof.

With the method of the embodiment, the first UE may directly feed theinformation back to the base station in a fast manner, and the basestation may perform scheduling on the second UE according to thereceived information. Since the information is fed back via the uplinkchannel, there is no need to introduce an information feedback mechanismon the sidelink channel, which is advantageous for simplifying theimplementation of the sidelink channel.

Based on the above method for processing information, the method will beexplained in detail below. As shown in FIG. 7, the second specificprocessing flow diagram of the method for processing informationprovided by the embodiment of the present application includes thefollowing steps:

Step 701: receiving, by the first UE, the PSCCH and/or the PSSCHtransmitted by the second UE.

Step 702: determining, by the first UE, a corresponding uplink channelfeedback resource and/or a sidelink channel feedback resource accordingto the PSCCH and/or the PSSCH.

In this step, according to the PSCCH/PSSCH, the step of determining thecorresponding uplink channel feedback resource and/or the correspondingsidelink channel feedback resource includes one of the following:

determining the uplink channel feedback resource and/or the sidelinkchannel feedback resource according to the indication information in thePSCCH; and,

determining the sidelink channel feedback resource according to thecorrespondence between the resource wherein the PSCCH/PSSCH is locatedand the feedback resource.

Step 703: receiving, by the first UE, the sidelink data transmitted bythe second UE.

The PSCCH further carries a time-frequency resource position and atransmission mode of the sidelink data transmitted by the second UE, andthe step of receiving the sidelink data transmitted by the second UEincludes:

-   -   receiving the sidelink data transmitted by the second UE based        on the time-frequency resource position and the transmission        mode carried in the PSCCH.

For the above feedback resource, the PSCCH further carries time-positioninformation of the uplink channel feedback resource if the feedbackresource is the uplink channel feedback resource; and/or, the PSCCHfurther carries time-position information of the sidelink channelfeedback resource if the feedback resource is the sidelink channelfeedback resource.

Step 704: transmitting, by the first UE, the feedback information of thesidelink data on the feedback resource.

In this step, the mode of transmitting the feedback information includesat least one of the following:

transmitting the hybrid automatic repeat request acknowledge HARQ-ACKand channel state information CSI of the sidelink data on the sidelinkchannel feedback resource, if the feedback resource is the sidelinkchannel feedback resource; and, transmitting the HARQ-ACK of thesidelink data on the uplink channel feedback resource and transmittingthe CSI on the sidelink channel feedback resource, if the feedbackresource includes the uplink channel feedback resource and the sidelinkchannel feedback resource.

In another processing manner, if the feedback resource is the uplinkchannel feedback resource, the step of transmitting the feedbackresource of the sidelink data on the feedback resource, includes:

transmitting the hybrid automatic repeat request acknowledge HARQ-ACKand channel state information CSI of the sidelink data on the uplinkchannel feedback resource.

In summary, based on the difference of the feedback resources, when thefeedback information of the sidelink data is transmitted on the feedbackresource, there are different processing manners, namely:

1. transmitting the HARQ-ACK and the CSI of the sidelink data on theuplink channel feedback resource;

2. transmitting the HARQ-ACK and the CSI of the sidelink data on thesidelink channel feedback resource; and,

3. transmitting the HARQ-ACK of the sidelink data on the uplink channelfeedback resource, and transmitting the CSI on the sidelink channelfeedback resource.

Based on the technical solution provided by the foregoing embodiment ofthe present application, the technical solution will be described indetail in the following three specific embodiments. Wherein, theselection of each technical solution is a solution for the differentfeedback resources mentioned above.

Embodiment II

A schematic diagram of this embodiment is shown in FIG. 8. In theembodiment, the second UE detects the downlink control channel C20transmitted by the base station in the specific downlink control channelsearch space S20, and determines the time-frequency resource fortransmitting the PSCCH, the time-frequency resource for transmitting thePSSCH, and the transmission mode of the PSSCH, which the transmissionmode of the PSSCH includes the modulation and coding mode of the PSSCH,transmission power control, etc. The C20 is scrambled by a specificRNTI20, which may be configured by the base station, and in this case,preferably, the value of RNTI20 should be different from the value ofother RNTIs of the second UE. The second UE should further acquire theconfiguration of the feedback resource from C20. Consequently, in thisembodiment, the downlink control channel C20 should include at least theinformation indicating the PSCCH transmission resource of the second UE,the information indicating the PSSCH transmission resource of the secondUE, the information indicating the PSSCH transmission mode of the secondUE, and the information indicating the feedback resource of the firstUE.

The second UE transmits the PSCCH2O according to the indication of theC20, and indicates the time-frequency resource of the scheduled PSSCH,the transmission mode of the scheduled PSSCH, and the feedback resourcein the PSCCH2O.

The first UE detects PSCCH2O transmitted by the second UE, receives thescheduled PSSCH according to the indication of the PSCCH2O, and acquiresthe configuration of the feedback resource. The first UE should feedback the HARQ-ACK information on the feedback resource according to thedetection result of the PSSCH, that is, if the PSSCH is successfullydemodulated, the first UE should feed back a positive acknowledge ACK,otherwise, the first UE should feed back a negative acknowledge NACK.

The above feedback resource may be the uplink control channel PUCCHresource, and in this case, the second UE may determine the PUCCHresource according to the PUCCH resource index in C20 and/or the indexof the control channel element (CCE) of C20, which the PUCCH resource isonly a PUCCH resource included in one PUCCH resource set. The second UEindicates the above PUCCH resource by using a CEIL (log 2U) bit in thetransmitted PSCCH, wherein CEILO indicates an upward rounding operation,and U indicates a maximum number of PUCCH resources that may beconfigured in the PUCCH set of the first UE, and the second UE may beconfigured by the base station to interact with the information of thefirst UE, or pre-configured to determine the value of U. The feedbackresource may also be a resource on the uplink shared channel PUSCH, andin this case, the PUSCH resource refers to a specific physical resourceblock (PRB) in a certain time slot. Regardless of whether the feedbackresource is a PUCCH resource or a PUSCH resource, the time-positionwhere the feedback resource is located should be indicated in the C20,and the time-position where the feedback resource is located may berepresented as an interval from the time-position of PSCCH transmittedby the second UE, or an interval from the time-position of the receivedPSSCH.

Preferably, the first UE may simultaneously feed back the HARQ-ACKinformation of the PSSCH and the HARQ-ACK information of the downlinkchannel received by the first UE in the same PUCCH, wherein the downlinkchannel includes the PDSCH2O that need to feed back the HARQ-ACKinformation and the PDCCH2O that indicates release of semi-persistentscheduling (SPS). In this case, the C30 and the PSCCH2O should include adownlink assignment index (DAI). When the HARQ-ACK feedback informationof the PSSCH and the HARQ-ACK feedback information of the PDSCH2O or thePDCCH2O are in the same feedback resource feedback, the DAI included inthe C30 and the PSCCH2O should be uniformly counted with the DAIincluded in the PDCCH of the scheduled PDSCH2O as well as the DAI in thePDCCH2O, as shown in FIG. 6.

Further, in this embodiment, the second UE may further carry the bufferstatus report (BSR) of the sidelink data of the UE by using thetransmitted PSSCH, and after successfully demodulating the PSSCHtransmitted by the second UE, the first UE may feed back the BSRtransmitted by the second UE to the base station. It should be notedthat the feedback resource used by the first UE to feed back the BSR maybe consistent with the feedback resource used to feed back the HARQ-ACKinformation, or may be different with thereof.

With the method of the embodiment, the first UE acquires theconfiguration of the feedback resource by using the PSCCH transmitted bythe second UE, and there is no need to detect the downlink controlchannel C20, which is beneficial to reducing the detection complexity ofthe first UE.

Embodiment III

A schematic diagram of this embodiment is shown in FIG. 9. In theembodiment, the second UE detects the downlink control channel C30transmitted by the base station in the specific downlink control channelsearch space S30, and determines the time-frequency resource fortransmitting the PSCCH, the time-frequency resource for transmitting thePSSCH, and transmission power control for transmitting the PSSCH, etc.The C30 is scrambled by a specific RNTI30, and the RNTI30 may beconfigured by the base station, and in this case, preferably, the valueof RNTI30 should be different from the value of other RNTIs of thesecond UE. The second UE should further acquire the configuration of thefirst feedback resource of the first UE from the C30, and the second UEmay also acquire the configuration of the second feedback resource fromthe C30. Consequently, in this embodiment, the downlink control channelC30 should include at least the information indicating the PSCCHtransmission resource of the second UE, the information indicating thePSSCH transmission resource of the second UE, the information indicatingthe PSSCH transmission mode of the second UE, and information indicatingthe first feedback resource of the first UE, as well as the informationindicating the second feedback resource of the first UE.

The first feedback resource may be the uplink control channel PUCCHresource, and in this case, the second UE may determine the PUCCHresource according to the PUCCH resource index in C30 and/or the indexof the control channel element (CCE) of C30, which the PUCCH resource isonly a PUCCH resource included in one PUCCH resource set. The second UEindicates the above PUCCH resource by using a CEIL (log 2U) bit in thetransmitted PSCCH, wherein CEILO indicates an upward rounding operation,and U indicates a maximum number of PUCCH resources that may beconfigured in the PUCCH set of the first UE, and the second UE may beconfigured by the base station to interact with the information of thefirst UE, or pre-configured to determine the value of U. The firstfeedback resource may also be a resource on the uplink shared channelPUSCH, and in this case, the PUSCH resource refers to a specificphysical resource block (PRB) in a certain time slot. Regardless ofwhether the first feedback resource is a PUCCH resource or a PUSCHresource, the time-position of the feedback resource should be indicatedin C30, that is, the interval between the time-position of receiving thePSSCH and the time-position of the feedback resource. The first feedbackresource is used by the first UE to feed back HARQ-ACK information ofthe PSSCH.

In addition, the second feedback resource is a resource on the sidelinkchannel, for example, the second feedback resource may be one PSCCHresource on the sidelink channel, or may be a specific resource on thesidelink channel for transmitting the PSSCH. The second feedbackresource is used by the first UE to feed back CSI (Channel StateInformation).

The second UE transmits the PSCCH30 according to the indication of C30,and indicates the time-frequency resource of the scheduled PSSCH, thetransmission power of the scheduled PSSCH, and the first feedbackresource in the PSCCH30.

The first UE detects the PSCCH30 transmitted by the second UE, receivesthe scheduled PSSCH according to the indication of the PSCCH30, andacquires the configuration of the first feedback resource and the secondfeedback resource. The first UE should feed back the HARQ-ACKinformation on the first feedback resource according to the detectionresult of the PSSCH, that is, if the PSSCH is successfully demodulated,the first UE should feed back a positive acknowledge ACK, otherwise, thefirst UE should feed back a negative acknowledge NACK. The first UEshould measure the CSI on the sidelink channel with the second UE andfeed back to the second UE through the second feedback resource.

Further, the first UE may simultaneously feed back the HARQ-ACKinformation of the PSSCH and the HARQ-ACK information of the downlinkchannel received by the first UE in the same PUCCH, wherein the downlinkchannel includes the PDSCH30 that needs to feed back the HARQ-ACKinformation and the PDCCH30 that indicates release of semi-persistentscheduling (SPS). In this case, the C30 and the PSCCH30 should include adownlink assignment index (DAI). When the HARQ-ACK feedback informationof the PSSCH and the HARQ-ACK feedback information of the PDSCH30 or thePDCCH30 are fed back in the same feedback resource, the DAI included inthe C30 and the PSCCH30 should be uniformly counted with the DAIincluded in the PDCCH of the scheduled PDSCH30 as well as the DAI in thePDCCH30, as shown in FIG. 6.

Further, in this embodiment, the second UE may further carry the bufferstatus report (BSR) of the sidelink data of the UE by using thetransmitted PSSCH, and after successfully demodulating the PSSCHtransmitted by the second UE, the first UE may feed back the BSRtransmitted by the second UE to the base station. It should be notedthat the feedback resource used by the first UE to feed back the BSR maybe consistent with the feedback resource used to feed back the HARQ-ACKinformation, or may be different with thereof.

With the method of this embodiment, the second UE may acquire the CSIinformation on the sidelink channel, thereby having the capability tomore accurately select the transmission mode of the PSSCH.

Embodiment IV

A schematic diagram of this embodiment is shown in FIG. 10. In theembodiment, the second UE detects the downlink control channel C40transmitted by the base station in the specific downlink control channelsearch space S40, and determines the time-frequency resource fortransmitting the PSCCH, the time-frequency resource for transmitting thePSSCH, and transmission power control for transmitting the PSSCH, etc.The C40 is scrambled by a specific RNTI40, and the RNTI40 may beconfigured by the base station, and in this case, preferably, the valueof RNTI40 should be different from the value of other RNTIs of thesecond UE. The second UE should further acquire the configuration of thefeedback resource of the first UE from the C40. Consequently, in thisembodiment, the downlink control channel C40 should include at least theinformation indicating the PSCCH transmission resource of the second UE,the information indicating the PSSCH transmission resource of the secondUE, information indicating the PSSCH transmission mode of the second UE,and information indicating the feedback resource of the first UE.

The feedback resource of the first UE is a resource on the sidelinkchannel, for example, the feedback resource may be one PSCCH resource onthe sidelink channel, or may be a specific resource on the sidelinkchannel for transmitting the PSSCH.

The second UE transmits the PSCCH40 according to the indication of theC40, and indicates the time-frequency resource of the scheduled PSSCH,the transmission power of the scheduled PSSCH, and the feedback resourceof the first UE in the PSCCH40.

The first UE detects the PSCCH40 transmitted by the second UE, receivesthe scheduled PSSCH according to the indication of the PSCCH40, andacquires the configuration of the feedback resource. The first UE shouldfeed back the HARQ-ACK information on the feedback resource according tothe detection result of the PSSCH, that is, if the PSSCH is successfullydemodulated, the first UE should feed back a positive acknowledge ACK,otherwise, the first UE should feed back a negative acknowledge NACK.The first UE should measure the CSI on the sidelink channel with thesecond UE and feed back to the second UE through the feedback resource.

With the method of the present embodiment, there is no need to maintainan RRC (Radio Resource Control) connection between the first UE and thebase station, and the information feedback in the case where the firstUE is in the coverage of the base station can be supported.

Embodiment V

In this embodiment, the second UE determines the status of the first UEby acquiring the information transmitted by the first UE, wherein thestatus includes whether the first UE is in the coverage of the basestation, and whether there is an RRC connection between the first UE andthe base station if the first UE is in the coverage of the base station.In addition, the first UE or the second UE should report the radionetwork identity of the first UE to the base station by usingcorresponding signaling information. If the first UE is in the coverageof the base station, and there is the RRC connection between the firstUE and the base station, then the second UE should detect the downlinkcontrol channel by using the method shown in Embodiment I of the presentapplication, and transmit the PSSCH according to the detected downlinkcontrol. The first UE should also detect the downlink control channeland the PSSCH transmitted by the second UE by using the method inEmbodiment I, and feed the HARQ-ACK information and/or the CSIinformation back to the base station. If there is no RRC connectionbetween the first UE and the base station, the second UE should detectthe downlink control channel by using the method in Embodiment IV of thepresent application, and transmit the PSCCH and the PSSCH according tothe detected downlink control channel. The first UE should also detectthe PSCCH and the PSSCH transmitted by the second UE by using the methodin Embodiment IV, and feed the HARQ-ACK information and/or the CSIinformation back to the second UE.

Based on the foregoing methods provided by the embodiments of thepresent application, the embodiment of the present application furtherprovides a terminal device, as shown in FIG. 11, includes:

a determining unit 1101, configured to determine, according to thereceived indication information, a corresponding feedback resource;

a receiving unit 1102, configured to receive sidelink data transmittedby a second UE; and,

a transmitting unit 1103, configured to transmit feedback information ofthe sidelink data on the feedback resource.

The determining unit 1101 is specifically configured to receive theindication information transmitted by the base station, and acquire theuplink channel feedback resource carried in the indication information.

The indication information further includes a time-frequency resourceposition and a transmission mode of the sidelink data transmitted by thesecond UE, and the receiving unit 1102 is specifically configured toreceive the sidelink data transmitted by the second UE based on thetime-frequency resource position and the transmission mode in theindication information

Wherein, the indication information is carried by the downlink controlchannel, and the downlink control channel is scrambled by the specificradio network temporary identity RNTI.

Further, the specific radio network temporary identify RNTI includes oneof the following: an RNTI of the second UE, an RNTI of a first UEtransmitting the feedback information of the sidelink data, and afunction of the RNTI of the second UE and the RNTI of the first UE.

The device further includes:

The sidelink data and the downlink assignment indexes DAIs of thedownlink channel are counted jointly and successively, if the uplinkchannel feedback resource of the HARQ-ACK information for feeding backthe sidelink data is consistent with the uplink channel feedbackresource of HARQ-ACK information for feeding back the downlink channel.

If the feedback resource is an uplink channel feedback resource, theindication information further carries time-position information of theuplink channel feedback resource.

The determining unit 1101 is further configured to receive the PSCCHand/or the PSSCH transmitted by the second UE, and determine acorresponding uplink channel feedback resource and/or a sidelink channelfeedback resource according to the PSCCH and/or the PSSCH.

Wherein, the determining unit 1101 determines the corresponding uplinkchannel feedback resource and/or the corresponding sidelink channelfeedback resource according to the PSCCH/PSSCH, including one of thefollowing:

determining the uplink channel feedback resource and/or the sidelinkchannel feedback resource according to the indication information of thePSCCH; and,

determining the sidelink channel feedback resource according to thecorrespondence between the resource where the PSCCH/PSSCH is located andthe feedback resource.

Further, the PSCCH further carries the time-frequency resource positionand the transmission mode of transmitting the sidelink data by thesecond UE, and the receiving unit 1102 is further specificallyconfigured to receive, based on the time-frequency resource position andthe transmission mode carried in the PSCCH, the sidelink datatransmitted by second UE.

Further, the PSCCH further carries the time-position information of theuplink channel feedback resource if the feedback resource is the uplinkchannel feedback resource; and/or, the PSCCH further carriestime-position information of the sidelink channel feedback resource ifthe feedback resource is the sidelink channel feedback resource.

The transmitting unit 1103 transmits the feedback information of thesidelink data on the feedback resource, including at least one of thefollowing:

transmitting the hybrid automatic repeat request acknowledge HARQ-ACKand the channel state information CSI of the sidelink data on thesidelink channel feedback resource, if the feedback resource is thesidelink channel feedback resource; and, transmitting the HARQ-ACK ofthe sidelink data on the uplink channel feedback resource andtransmitting the CSI on the sidelink channel feedback resource, if thefeedback resource includes the uplink channel feedback resource and thesidelink channel feedback resource.

The transmitting unit 1103 is further configured to transmit the hybridautomatic repeat request acknowledge HARQ-ACK and channel stateinformation CSI of the sidelink data on the uplink channel feedbackresource, if the feedback resource is the uplink channel feedbackresource.

The terminal device illustrated in FIG. 11 may correspond to theterminal device 1400 illustrated in FIG. 14. For example, the processor1401 of the terminal device 1400 may comprise the determining unit 1101of the terminal device illustrated in FIG. 11, or perform the operationsperformed by the determining unit 1101 described herein, respectively.

The embodiment of the present application further provides a method forprocessing information, as shown in FIG. 12, including the followingsteps:

Step 1201: receiving status indication information transmitted by afirst UE; Step 1202: determining a connection relationship between thefirst UE and a base station based on the status indication information;and,

Step 1203: determining whether to receive feedback informationtransmitted by the first UE on a feedback resource, according to theconnection relationship between the first UE and the base station.

The step of determining whether to receive feedback informationtransmitted by the first UE on the feedback resource, based on theconnection relationship between the first UE and the base station,includes:

receiving feedback information transmitted by the first UE on thefeedback resource if there is no RRC connection between the first UE andthe base station;

specifically, receiving indication information transmitted by the basestation and transmitting the indication information to the first UE,such that the first UE determines a time-frequency resource position, atransmission mode, and a feedback resource of the corresponding sidelinkdata based on the received indication information; and, receivingfeedback information transmitted by the first UE on the feedbackresource.

The method further includes receiving the indication informationtransmitted by the base station, and transmitting the sidelink databased on the indication information, if there is RRC connection betweenthe first UE and the base station.

Based on the above method provided by the embodiment of the presentapplication, the embodiment of the present application further providesa terminal device, as shown in FIG. 13, including:

a receiving unit 1301, configured to receive status indicationinformation transmitted by a first UE;

a first processing unit 1302, configured to determine a connectionrelationship between the first UE and a base station based on the statusindication information; and,

a second processing unit 1303, configured to determine whether toreceive feedback information transmitted by the first UE on a feedbackresource, according to the connection relationship between the first UEand the base station.

The second processing unit 1303 is further configured to receivefeedback information transmitted by the first UE on the feedbackresource if there is no RRC connection between the first UE and the basestation;

Specifically, the second processing unit 1303 is configured to receiveindication information transmitted by the base station and transmittingthe indication information to the first UE, such that the first UEdetermines a time-frequency resource position, a transmission mode, anda feedback resource of the corresponding sidelink data based on thereceived indication information;

The receiving unit 1301 is further configured receive feedbackinformation transmitted by the first UE on the feedback resource.

The receiving unit 1301 is further configured to receive the indicationinformation transmitted by the base station, if there is RRC connectionbetween the first UE and the base station, and the second processingunit 1303 transmits the sidelink data according to the indicationinformation.

The embodiment of the present application further provides a terminaldevice, including a memory and a first processor, wherein the memory isconfigured to store a computer program, when the computer program isexecuted by the first processor, the steps of the foregoing method forprocessing information are implemented.

The terminal device illustrated in FIG. 13 may correspond to theterminal device 1500 illustrated in FIG. 15. For example, the processor1501 of the terminal device 1500 may comprise the first processing unit1302 and the second processing unit 1303 of the terminal device of theterminal device illustrated in FIG. 13, or perform the operationsperformed by the first processing unit 1302 and the second processingunit 1303 described herein, respectively.

FIG. 14 schematically illustrates a terminal device in the first UE sideaccording to an embodiment of the present disclosure.

The terminal devices in the first UE side or the first UEs describedabove may correspond to the terminal device 1400 in the first UE side.For example, the terminal device illustrated in FIG. 11 may correspondto the terminal device 1400.

Referring to the FIG. 14, the terminal device 1400 may include aprocessor 1401, a transceiver 1402 and a memory 1403. However, all ofthe illustrated components are not essential. The terminal device 1400may be implemented by more or less components than those illustrated inFIG. 14. In addition, the processor 1401 and the transceiver 1402 andthe memory 1403 may be implemented as a single chip according to anotherembodiment.

The aforementioned components will now be described in detail.

The processor 1401 may include one or more processors or otherprocessing devices that control the proposed function, process, and/ormethod. Operation of the terminal device 1400 may be implemented by theprocessor 1401.

The processor 1401 may detect a PDCCH on a configured control resourceset. The processor 1401 determines a method for dividing CBs and amethod for rate matching of a PDSCH according to the PDCCH. Theprocessor 1401 may control the transceiver 1402 to receive the PDSCHaccording to the PDCCH. The processor 1401 may generate HARQ-ACKinformation according to the PDSCH. The processor 1401 may control thetransceiver 1402 to transmit the HARQ-ACK information.

The transceiver 1402 may include a RF transmitter for up-converting andamplifying a transmitted signal, and a RF receiver for down-converting afrequency of a received signal. However, according to anotherembodiment, the transceiver 1402 may be implemented by more or lesscomponents than those illustrated in components.

The transceiver 1402 may be connected to the processor 1401 and transmitand/or receive a signal. The signal may include control information anddata. In addition, the transceiver 1402 may receive the signal through awireless channel and output the signal to the processor 1401. Thetransceiver 1402 may transmit a signal output from the processor 1401through the wireless channel.

The memory 1403 may store the control information or the data includedin a signal obtained by the terminal device 1400. The memory 1403 may beconnected to the processor 1401 and store at least one instruction or aprotocol or a parameter for the proposed function, process, and/ormethod. The memory 1403 may include read-only memory (ROM) and/or randomaccess memory (RAM) and/or hard disk and/or CD-ROM and/or DVD and/orother storage devices.

FIG. 15 schematically illustrates a terminal device in the second UEside according to an embodiment of the present disclosure.

FIG. 15 schematically illustrates a terminal device 1500 in the secondUE side according to an embodiment of the present disclosure.

The terminal devices in the second UE side or the second UEs describedabove may correspond to the terminal device 1500 in the second UE side.For example, the terminal device illustrated in FIG. 13 may correspondto the terminal device 1500.

Referring to the FIG. 15, the terminal device 1500 may include aprocessor 1501, a transceiver 1502 and a memory 1503. However, all ofthe illustrated components are not essential. The terminal device 1500may be implemented by more or less components than those illustrated inFIG. 15. In addition, the processor 1501 and the transceiver 1502 andthe memory 1503 may be implemented as a single chip according to anotherembodiment.

The aforementioned components will now be described in detail.

The processor 1501 may include one or more processors or otherprocessing devices that control the proposed function, process, and/ormethod. Operation of the terminal device 1500 may be implemented by theprocessor 1501.

The processor 1501 may detect a PDCCH on a configured control resourceset. The processor 1501 determines a method for dividing CBs and amethod for rate matching of a PDSCH according to the PDCCH. Theprocessor 1501 may control the transceiver 1502 to receive the PDSCHaccording to the PDCCH. The processor 1501 may generate HARQ-ACKinformation according to the PDSCH. The processor 1501 may control thetransceiver 1502 to transmit the HARQ-ACK information.

The transceiver 1502 may include a RF transmitter for up-converting andamplifying a transmitted signal, and a RF receiver for down-converting afrequency of a received signal. However, according to anotherembodiment, the transceiver 1502 may be implemented by more or lesscomponents than those illustrated in components.

The transceiver 1502 may be connected to the processor 1501 and transmitand/or receive a signal. The signal may include control information anddata. In addition, the transceiver 1502 may receive the signal through awireless channel and output the signal to the processor 1501. Thetransceiver 1502 may transmit a signal output from the processor 1501through the wireless channel.

The memory 1503 may store the control information or the data includedin a signal obtained by the terminal device 1500. The memory 1503 may beconnected to the processor 1501 and store at least one instruction or aprotocol or a parameter for the proposed function, process, and/ormethod. The memory 1503 may include read-only memory (ROM) and/or randomaccess memory (RAM) and/or hard disk and/or CD-ROM and/or DVD and/orother storage devices.

FIG. 16 schematically illustrates a base station according to anembodiment of the present disclosure.

The base stations described above may correspond to the base station1600.

Referring to the FIG. 16, the base station 1600 may include a processor1601, a transceiver 1602 and a memory 1603. However, all of theillustrated components are not essential. The base station 1600 may beimplemented by more or less components than those illustrated in FIG.16. In addition, the processor 1601 and the transceiver 1602 and thememory 1603 may be implemented as a single chip according to anotherembodiment.

The aforementioned components will now be described in detail.

The processor 1601 may include one or more processors or otherprocessing devices that control the proposed function, process, and/ormethod. Operation of the base station 1600 may be implemented by theprocessor 1601.

The processor 1601 may detect a PUCCH on a configured control resourceset. The processor 1601 determines a method for dividing CBs and amethod for rate matching of a PUSCH according to the PUCCH. Theprocessor 1601 may control the transceiver 1602 to receive the PUSCHaccording to the PUCCH. The processor 1601 may generate HARQ-ACKinformation according to the PUSCH. The processor 1601 may control thetransceiver 1602 to transmit the HARQ-ACK information.

The transceiver 1602 may include a RF transmitter for up-converting andamplifying a transmitted signal, and a RF receiver for down-converting afrequency of a received signal. However, according to anotherembodiment, the transceiver 1602 may be implemented by more or lesscomponents than those illustrated in components.

The transceiver 1602 may be connected to the processor 1601 and transmitand/or receive a signal. The signal may include control information anddata. In addition, the transceiver 1602 may receive the signal through awireless channel and output the signal to the processor 1601. Thetransceiver 1602 may transmit a signal output from the processor 1601through the wireless channel.

The memory 1603 may store the control information or the data includedin a signal obtained by the base station 1600. The memory 1603 may beconnected to the processor 1601 and store at least one instruction or aprotocol or a parameter for the proposed function, process, and/ormethod. The memory 1603 may include read-only memory (ROM) and/or randomaccess memory (RAM) and/or hard disk and/or CD-ROM and/or DVD and/orother storage devices.

It should be understood by those skilled in the art that the presentapplication involves devices for carrying out one or more of operationsas described in the present application. Those devices may be speciallydesigned and manufactured as intended, or may comprise well knowndevices in a general-purpose computer. Those devices have computerprograms stored therein, which are selectively activated orreconstructed. Such computer programs may be stored in a device (e.g. acomputer) readable medium or in any type of medium suitable for storingelectronic instructions and respectively coupled to a bus, and thecomputer readable medium includes but are not limited to any type ofdisks (including floppy disks, hard disks, optical disks, CD-ROM andmagneto optical disks), an ROM (Read-Only Memory), an RAM (Random AccessMemory), an EPROM (Erasable Programmable Read-Only Memory), an EEPROM(Electrically Erasable Programmable Read-Only Memory), a flash memory, amagnetic card or an optical line card. In other words, the readablemedium comprises any medium storing or transmitting information in adevice (e.g., a computer) readable form.

It should be understood by those skilled in the art that computerprogram instructions may be used to realize each block in structurediagrams and/or block diagrams and/or flowcharts as well as acombination of blocks in the structure diagrams and/or block diagramsand/or flowcharts. It should be understood by those skilled in the artthat these computer program instructions can be provided to generalpurpose computers, special purpose computers or other processors ofprogrammable data processing means to be implemented, so that solutionsdesignated in a block or blocks of the structure diagrams and/or blockdiagrams and/or flow diagrams are executed by computers or otherprocessors of programmable data processing means.

It may be understood by those skilled in the art that the steps,measures and solutions in the operations, methods and flows alreadydiscussed in the present application may be alternated, changed,combined or deleted. Further, other steps, measures and solutions in theoperations, methods and flows already discussed in the presentapplication may also be alternated, changed, rearranged, decomposed,combined or deleted. Further, the steps, measures and solutions in theart in the operations, methods and operations disclosed in the presentapplication may also be alternated, changed, rearranged, decomposed,combined or deleted.

The foregoing descriptions are merely some implementations of thepresent application. It should be noted that, to those skilled in theart, various improvements and modifications may be made withoutdeparting from the principle of the present application, and theseimprovements and modifications shall be regarded as falling into theprotection scope of the present application.

1. A method for processing information, comprising the following steps:determining a corresponding feedback resource based on receivedindication information; receiving sidelink data transmitted by a secondUE; and, transmitting feedback information of the sidelink data on thefeedback resource.
 2. The method of claim 1, wherein, the step ofdetermining a corresponding feedback resource based on receivedindication information, comprises: receiving the indication informationtransmitted by a base station; and, acquiring an uplink channel feedbackresource carried in the indication information.
 3. The method of claim2, wherein, the indication information further carries a time-frequencyresource position and a transmission mode of the sidelink datatransmitted by the second UE, and the step of receiving sidelink datatransmitted by the second UE comprises: receiving the sidelink datatransmitted by the second UE based on the time-frequency resourceposition and the transmission mode in the indication information.
 4. Themethod of claim 2, wherein, the indication information is carried by adownlink control channel, and the downlink control channel is scrambledby a specific radio network temporary identity RNTI.
 5. The method ofclaim 4, wherein, the specific radio network temporary identify RNTIcomprises one of the following: an RNTI of the second UE, an RNTI of afirst UE transmitting the feedback information of the sidelink data, anda function of the RNTI of the second UE and the RNTI of the first UE. 6.The method of claim 1, further comprising: counting downlink assignmentindexes DAIs of the sidelink data and downlink channel jointly andsuccessively, if an uplink channel feedback resource of informationabout a hybrid automatic repeat request acknowledge HARQ-ACK for feedingback the sidelink data is consistent with an uplink channel feedbackresource of the HARQ-ACK information for feeding back the downlinkchannel.
 7. The method of claim 2, wherein, if the feedback resource isthe uplink channel feedback resource, the indication information furthercarries time-position information of the uplink channel feedbackresource.
 8. The method of claim 1, wherein, the step of determining acorresponding feedback resource based on the received indicationinformation, comprises: receiving a physical sidelink control channelPSCCH transmitted by the second UE and/or a physical sidelink sharedchannel PSSCH; and, determining a corresponding uplink channel feedbackresource and/or a corresponding sidelink channel feedback resourceaccording to the PSCCH and/or the PSSCH.
 9. The method of claim 8,wherein, the step of determining the corresponding uplink channelfeedback resource and/or the corresponding sidelink channel feedbackresource according to the PSCCH and/or the PSSCH, comprises: determiningthe uplink channel feedback resource and/or the sidelink channelfeedback resource according to the indication information in the PSCCH;and, determining the sidelink channel feedback resource according to thecorrespondence between the resource where the PSCCH/PSSCH is located andthe feedback resource.
 10. The method of claim 9, wherein, the PSCCHfurther carries a time-frequency resource position and a transmissionmode of the sidelink data transmitted by the second UE, and the step ofreceiving the sidelink data transmitted by the second UE comprises:receiving the sidelink data transmitted by the second UE based on thetime-frequency resource position and the transmission mode carried inthe PSCCH.
 11. A terminal device, comprising: a determining unit,configured to determine a corresponding feedback resource based onreceived indication information; a receiving unit, configured to receivesidelink data transmitted by a second UE; and, a transmitting unit,configured to transmit feedback information of the sidelink data on thefeedback resource.
 12. A method for processing information, comprisingthe following steps: receiving status indication information transmittedby a first UE; determining a connection relationship between the firstUE and a base station based on the status indication information; and,determining whether to receive feedback information transmitted by thefirst UE on a feedback resource, according to the connectionrelationship between the first UE and the base station.
 13. The methodof claim 12, wherein, the step of determining whether to receivefeedback information transmitted by the first UE on the feedbackresource, according to the connection relationship between the first UEand the base station, comprises: receiving feedback informationtransmitted by the first UE on the feedback resource, if there is no RRCconnection between the first UE and the base station; specifically,receiving indication information transmitted by the base station andtransmitting the indication information to the first UE, such that thefirst UE determines a time-frequency resource position, a transmissionmode, and a feedback resource of the corresponding sidelink data basedon the received indication information; and, receiving feedbackinformation transmitted by the first UE on the feedback resource. 14.The method of claim 12, wherein, the step of determining whether toreceive feedback information transmitted by the first UE on the feedbackresource, according to the connection relationship between the first UEand the base station, comprises: receiving the indication informationtransmitted by the base station, and transmitting the sidelink dataaccording to the indication information, if there is RRC connectionbetween the first UE and the base station.
 15. A terminal device,comprising: a receiving unit, configured to receive status indicationinformation transmitted by a first UE; a first processing unit,configured to determine a connection relationship between the first UEand a base station based on the status indication information; and, asecond processing unit, configured to determine whether to receivefeedback information transmitted by the first UE on a feedback resource,according to the connection relationship between the first UE and thebase station.